Our News

  • 7074 C3 Corvette M22 Muncie 4 Speed quotROCK CRUSHER

    7074 C3 Corvette Chevelle Camaro Nova M22 Muncie 4 Speed ROCK CRUSHER TransmissionFine Spline Input Shaft 26All New PartsItalian GearsLarge Turbo 400 Output Shaft GM 3925661 We can have the case stamped to match a car for a numbers matching buildcall for details

    read more
  • Chevy Muncie M20 M21 amp M22 4Speed Transmission Parts

    All M22s use a 26spline shaft made from a stronger alloy than the other 4speeds However GM made both 10 and 26spline versions of the M20 and M21 There are two ways you can tell the difference between the M21 and the Rock Crusher The M22 has 27 teeth on the countershaft gear while the M20 and M21 have 29 teeth

    read more
  • How to Identify a M22 Rock Crusher It Still Runs

    An M22 Rock Crusher is a Muncie fourspeed transmission for cars made by General Motors in the 1960s Identify a transmission type correctly before fitting it into your car If you have the incorrect transmission your car may not function properly

    read more
  • When was the M22 first called quotrock crusherquot Team

    Apr 27 2016 The first time I heard the term rock crusher was in reference to the transmission in the 1967 L88 Corvette Due to the low gear angle there is a fair amount of gear noise really like a medium heavy duty truck transmission True enough the M22 did trickle out the door in 196567 and was buried in the option lists

    read more
  • Guide to Muncie M20 M21 and M22 FourSpeed Transmissions

    Aug 07 2018 The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolets bigblocks in the mid1960s The M20 and M21 transmissions produced from 196374 are easy to identify in both

    read more
  • Guide to Muncie M20 M21 and M22 FourSpeed

    Aug 08 2018 The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolets bigblocks in the mid1960s The M20 and M21 transmissions produced from 196374 are easy to identify in both

    read more
  • Muncie M22 Rock Crusher 4 speed Hot Rod Forum

    Aug 20 2003 Can someone tell me how much a muncie m22 rock crusher is worth this transmission was produced buy gm in 1966amp1967 I had a 71 GTO with a M22 rock crusher This was an absolutely stout transmission Chevy Tri Five Forum 50K members LayItLow Lowrider Forums 211K members Toyota BZ Forum

    read more
  • Muncie M22 Rockcrusher Borg Warner Super T10 or

    Aug 23 2012 Muncie M22 Rockcrusher Borg Warner Super T10 or Turbo 400 Discussion in Transmission amp Driveline Topics started by Spencer77 Aug 22 2012 Page 1 of 2 1 2 Next

    read more
  • Muncie M22 Rock Crusher Four Speed Transmission

    Aug 27 2021 How To Rebuild Muncie 4Speed Manual Transmission M20 M21 M22 Rock Crusher 2540 595 shipping 595 shipping 595 shipping GMChevy Muncie M22 4 Speed Transmission Cluster Shaft Gear w 1 Pin 78240 12549 Free shipping Free shipping Free shipping

    read more
  • Muncie M22 Rockcrusher Close Wide and NEW ExtraWide

    Code New Muncie M22 220 close ratio or 252 wide ratio Rockcrusher gear set is availabe with either a 10 or 26 spline input Close ratio 26 spline gear sets available in Italian or Korean made You must select whether you need a wide or close ratio amp which input spline count 10 or 26 Fits all Muncie applications with 1 countershaft pin

    read more
  • Muncie 4 Speed amp GM Manual Transmissions Buy Sell Trade

    Easley SC 1300 Muncie M20 4 speed transmission w Hurst competition Plus shifter Middletown NJ 850 950 Muncie 4 Speed Corvette Chevelle Camaro Nova Gasser Etc Willowick OH 77 WANTED Muncie Trans Extension 3857584 casting date 9 or 10

    read more
  • Muncie 3 speed transmissions Team Chevelle

    Feb 27 2019 GTO 3Speed Transmission 1972 GTO Heavy Duty 3speed transmission Dearborn Muncie M13 M12 Muncie M20 M22 rock crusher Auto RoundUp MagazineA LC thanks for the nice words The transmission listed on the build sheet you sent me is indeed the Heavy Duty 3speed transmission I spoke of in the a recent Auto RoundupCar Collector Corner

    read more
  • 1969 Chevy M22 Close Ratio Rock Crusher Muncie 4 Speed

    Find many great new amp used options and get the best deals for 1969 Chevy M22 Close Ratio Rock Crusher Muncie 4 Speed Transmission 3925660 at the best online prices at

    read more
  • how to identify an m rock crusher transmission

    how to identify an m22 rock crusher transmission M22 Rock Crusher 4 Gear Trans Muncie M22 Rock Crusher 4 SPEEDS FROM 1965 TO 1974 This page is devoted to you in completing your M22 rebuild or providing you

    read more
  • Muncie 4 Speed Transmissions

    How to Identify Muncie 4 Speed Transmissions Identifying Muncie 4 Speeds III by Paul Cangialosi The most popular question has to be that everyone thinks they have the famous rockcrusher M22 4 speed This had the same gear ratios as the M21 but with

    read more
  • Muncie M22 Rock Crusher Four Speed Transmission New

    Jul 14 2018 How To Rebuild Muncie 4Speed Manual Transmission M20 M21 M22 Rock Crusher 2540 595 shipping 595 shipping 595 shipping GMChevy Muncie M22 4 Speed Transmission Cluster Shaft Gear w 1 Pin 78240 12549 Free shipping Free shipping Free shipping

    read more
  • Converting to a M22 Rock Crusher Team Camaro Tech

    Jul 15 2013 I have 67 Camaro with a factory M20 4speed The synchronizers are going bad and its time to replace the trans The engine has been freshly built and pushing 450500HP I am looking at either a Keisler 5speed or the legendary M22 Rock Crusher from Midwest Muncie Can anybody tell me if the M22

    read more
  • The Muncie 4 Speed Transmission Taught A Generation Of

    Jun 09 2021 The M22 Rock Crusher featured a oneinch countershaft pin bore and shotpeened gears with aggressive helix angles that reduced heat and stress but also increased noise leading to the nickname as the transmissions rattled their way down the road

    read more
  • probably a dumb question m22 rock crusher

    Jun 20 2012 ROCK CRUSHER it is the smoothest shifting transmission i have ever driven hardly feels like you are crushing rocks i feel a little click every time i shift so i wonder if that is it and yes i checked the numbers it is a true m22 thanks axle

    read more
  • GENERAL MOTORS MUNCIE 4SPEED MANUAL

    L36s36T M22 Rock Crusher 196474 3924796 WT29712B NOTE these TWO 2 gears wo snapring counterbore on cone end used wo thrust washer A13 Mainshaft 1st Gear Bushing

    read more
  • Muncie 4 speedM21 M22 Rock Crusher The HAMB

    Mar 30 2009 I currently have an M22 Rock crusher in my 56 Chevy pickup and have another M22 that was rebuilt about 6 years ago by my father but never used I also have what I believe is an M21 but Im not certain The M22s are both close ratio and the M21 is a wide ratioagain from what I

    read more
  • Muncie fourspeeds Hemmings

    Muncie also had a second closeratio transmission designated M22 and often referred to as the rockcrusher which was used behind the highestperformance engines and in Corvettes the M22 is a highly soughtafter performance transmission It is the heavyduty version of the 2201 ratio M21 fourspeed

    read more
  • Muncie 4Speed Identification Guide Chevy DIY

    Muncies with 26spline inputs and 32spline output shafts came as M20 M21 and M22 transmissions Before 1969 only M22 transmissions had drain plugs From 1969 to 1974 allratio Muncies came with drain plugs Muncie countergears had the same number of teeth on first

    read more
  • m22 rock crusher Hot Rod Forum

    Nov 09 2004 m22 rock crusher Jump to when i removed the motor and trans i discovered it has a m22 trans in it i know its not stock but not being a chevy guy i was wondering if it is worth any thing thanks Joined Nov 3 2004 7 Posts 2 Nov 9 2004 If your sure its a real M22 its a pretty rare transmission THey go for about 8001200

    read more
  • Muncie decoding

    Nov 23 2014 Location Bismarck North Dakota All 3 models of Muncie were used yet in early 1973 Part way through the production year the supply ran out and after that Borg Warners were used If you have a 1973 Muncie it could be a M20 M21 or M22 The numbers stamped on

    read more
  • How to Rebuild a Muncie FourSpeed Transmission Rock

    Oct 07 2014 The Muncie fourspeed is as legendary as the cars that it was put into with the M20 M21 and Rock Crusher M22 models all part of the hot rod vernacular

    read more
  • M22Wide vs M22 quotRock Crusherquot Team Chevelle

    Oct 30 2008 We are restoring a 72 Chevelle SS and would like to use a Muncie Rock Crusher Is there anyone out there that and tell me the difference between a Muncie M22W and a M22 Rock Crusher I have tired to look online but not finding anything to help I would appreciate it Thanks

    read more
  • Muncie M22 Rockcrusher Transmission For Sale

    Performance Built Muncie M22 Rock Crusher 4 Speed Transmission This unit has been rebuilt at our state of the art facility We have carefully engineered a process that allows us to bring you a product we can stand behind This is a direct replacement for the following Chevrolet Oldsmobile Buick and Pontiac vehicles Compatible Vehicles

    read more
  • Muncie M22 4 Speed Rock Crusher Gear Whine YouTube

    Sep 03 2015 A video with better audio of the nostalgic sound of a Muncie M22 Rock Crusher transmission at work in a 1966 Chevrolet Chevelle

    read more
  • The 1965 Chevrolet M22 Rockcrusher Transmission The

    Sep 15 2010 A Chevrolet Engineering Change Recommendation 68715 was issued on December 19 1964 that proposed the changes required to change the M2021 into the M22 rockcrusher transmission This ECR is referred to several times through the 1965 Corvette AIM Assembly Instruction Manual with the date stated on the AIM sheets as April 23 1965

    read more
  • M21 M22 4 Speed Muncie Manual Transmission Midwest

    The M21 amp M22 is a four speed RWD or 4WD transmission The M21 amp M22 is a Muncie engineering design this transmission is aluminum case extension housing and side cover The side cover has seven bolts and two shift cams The synchro rings have 35 teeth and the unit has a 4 step cluster gear The reverse gears are helical cut and are located

    read more
  • Muncie 4speed

    The M22 transmission has a 20 degree helix angle on the gear set as opposed to a 45 degree angle found on the M20 and M21 and were made with a higher nickel alloy The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise thus the nickname Rock Crusher was born

    read more
  • The Mighty amp Majestic Muncie 4 Speed Transmission

    The M22 was eventually dubbed the Rock Crusher It is a common misconception that all Muncie transmissions are Rock Crushers but it is only the M22 that deserves that name The M20 and M21 were both release in 1963 but it wasnt until 1965 that the M22 hit the market The M22 was created for the Corvette Grand Sport racing program

    read more
  • Muncie 4speed Transmission Group 4000

    The term rock crusher refers to the noise made by the meshing of the stronger helical gears in the M22 Later model 197174 Muncies are also popular with racers because these transmissions used a 32spline output that is stronger than the early 27spline and the newer units seem to perform better in highrpm and highhorsepower applications

    read more
  • 19651969 Corvette Camaro Chevelle Rebuilt M22 4 Speed

    This is a Very Rare and Completely and Freshly Rebuilt Original REAL 1965 65 1966 66 1967 67 1968 68 1969 69 and 1970 70 GM Chevy Corvette Camaro and Chevelle M22 M22 Muncie Close Ratio Rock Crusher 4 Speed Transmission It is actually a Rock Crusher from a 1968 Camaro This has the course spline input with no lines or grooves the special GM original factory gears no aftermarket or

    read more
gotop